Function createWiredPair

packages/message/window_message.test.ts:202–219

()

describe("ServiceWorkerMessageSend ↔ ServiceWorkerClientMessage 双向通信", () => {
  // 辅助函数: 将两端连接起来，模拟 postMessage 通道
  function createWiredPair() {
    const swSend = new ServiceWorkerMessageSend();
    const clientMsg = new ServiceWorkerClientMessage();

    // 模拟 offscreen client（SW 发送给 offscreen 时的 target）
    const offscreenPostMessage = vi.fn((data: WindowMessageBody) => {
      // SW → Offscreen: 投递到 clientMsg 的 messageHandle
      clientMessageHandler?.({ data });
    });

    // client.postToServiceWorker → 投递到 SW 的 messageHandle
    swPostMessageMock.mockImplementation((data: WindowMessageBody) => {
      const source = { postMessage: offscreenPostMessage };
      swMessageHandler?.({ data, source } as any);
    });

    return { swSend, clientMsg };
  }

  it("sendMessage: client→SW 请求并收到响应", async () => {
    const { swSend, clientMsg } = createWiredPair();